Table 1.
Patient demographics and perioperative characteristics (n = 4965)
| Factor | Missing n (%) | |
|---|---|---|
| Mean (SD) age, years | 47.0 (25.1) | 0 |
| Range | 0–99 | |
| Sex | ||
| Female | 2349 (47.3) | 0 |
| Male | 2616 (52.7) | |
| ASA physical status | ||
| 1 | 986 (19.9) | 0 |
| 2 | 2217 (44.7) | |
| 3 | 1579 (31.8) | |
| 4 | 183 (3.7) | |
| Ethnicity | 283 (6.0) | |
| White | 3263 (69.7) | |
| Asian | 441 (9.4) | |
| ATSI | 25 (0.5) | |
| Black/African | 50 (1.1) | |
| Other | 903 (19.3) | |
| Socio‐economic classification (IRSAD) | 23 (0.5) | |
| 1–20% | 604 (12.2) | |
| 21–40% | 763 (15.4) | |
| 41–60% | 915 (18.5) | |
| 61–80% | 1072 (21.7) | |
| 81–100% | 1588 (32.1) | |
| Comorbidities | ||
| CVD (including HT, HF, CAD) | 1766 (35.6) | 2 (0.0) |
| Treated diabetes | 642 (12.9) | 2 (0.0) |
| COPD and/or asthma | 771 (15.5) | 2 (0.0) |
| Month of surgery | 5 (0.1) | |
| July | 1302 (26.3) | |
| August | 3658 (73.8) | |
| Preoperative screening on admission | 4618 (93.3) | 14 (0.3) |
| Temperature check on admission | 4861 (98.0) | 4 (0.1) |
| Overseas travel in 2020 | 27 (0.6) | 623 (14.3) |
| When was travel | 5 (19) | 0 |
| ≤2 weeks | 22 (81) | |
| >2 weeks | ||
| COVID‐19 contact | 13 (0.3) | 16 (0.3) |
| When was contact | 0 | |
| ≤2 weeks | 9 (69) | |
| >2 weeks | 4 (31) | |
| Health worker | 136 (2.7) | 3 (0.1) |
| Surgery type | 3 (0.1) | |
| Orthopaedic | 381 (7.7) | |
| Urology | 697 (14.0) | |
| Gynaecological | 361 (7.3) | |
| Gastrointestinal | 536 (10.8) | |
| Plastics | 415 (8.4) | |
| Neurological | 155 (3.1) | |
| Cardiac | 201 (4.1) | |
| Vascular | 127 (2.6) | |
| Ear, nose, throat | 286 (5.8) | |
| Endoscopy | 952 (19.2) | |
| Ophthalmology | 59 (1.2) | |
| Oral/faciomaxillary | 61 (1.2) | |
| Other | 731 (14.7) | |
| Unplanned ICU/HDU admission | 36(0.07) | 32 (0.6) † |
| Hospital stay | 7 (0.1) † | |
| ≥1 night stay | 2112 (42.6) | |
| Day case | 2846 (57.4) | |
| Number of nights in hospital, median (IQR) | 2.0 (1.0. 5.0) | 34 (1.6) † |
| In‐hospital mortality | 10 (0.2) | 37 (0.8) † |
Data are represented as number (%), unless otherwise indicated.
†
Patients still as inpatients on 22 September 2020.
ASA, American Society of Anesthesiologists; ATSI, Aboriginal or Torres Strait Islander; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; CVD, cardiovascular disease; HDU, high‐dependency unit; HF, heart failure; HT, hypertension; ICU, intensive care unit; IQR, interquartile range; IRSAD, Index of Relative Socio‐economic Advantage and Disadvantage.